165108442 has 8 divisors (see below), whose sum is σ = 260697600. Its totient is φ = 78209244.

The previous prime is 165108431. The next prime is 165108443. The reversal of 165108442 is 244801561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (165108443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2172442 + ... + 2172517.

It is an arithmetic number, because the mean of its divisors is an integer number (32587200).

Almost surely, 2^165108442 is an apocalyptic number.

165108442 is a deficient number, since it is larger than the sum of its proper divisors (95589158).

165108442 is a wasteful number, since it uses less digits than its factorization.

165108442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4344980.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 165108442 is about 12849.4529844659. The cubic root of 165108442 is about 548.6007871903.

The spelling of 165108442 in words is "one hundred sixty-five million, one hundred eight thousand, four hundred forty-two".